APA Style
Tarigan, Balaman, Sipayung, Tungkot. (2011).
Perkebunan Kelapa Sawit .
Bogor:
IPB Press.
Chicago Style
Tarigan, Balaman, Sipayung, Tungkot.
Perkebunan Kelapa Sawit.
Bogor:
IPB Press,
2011.
Text.
MLA Style
Tarigan, Balaman, Sipayung, Tungkot.
Perkebunan Kelapa Sawit.
Bogor:
IPB Press,
2011.
Text.
Turabian Style
Tarigan, Balaman, Sipayung, Tungkot.
Perkebunan Kelapa Sawit.
Bogor:
IPB Press,
2011.
Print.